webkit/fileapi/remove_operation_delegate.cc

   1 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "webkit/fileapi/remove_operation_delegate.h"
   6
   7 #include "base/bind.h"
   8 #include "webkit/browser/fileapi/local_file_system_operation.h"
   9 #include "webkit/fileapi/file_system_context.h"
  10 #include "webkit/fileapi/file_system_operation_context.h"
  11
  12 namespace fileapi {
  13
  14 RemoveOperationDelegate::RemoveOperationDelegate(
  15     FileSystemContext* file_system_context,
  16     LocalFileSystemOperation* operation,
  17     const FileSystemURL& url,
  18     const StatusCallback& callback)
  19     : RecursiveOperationDelegate(file_system_context, operation),
  20       url_(url),
  21       callback_(callback) {
  22 }
  23
  24 RemoveOperationDelegate::~RemoveOperationDelegate() {}
  25
  26 void RemoveOperationDelegate::Run() {
  27   NewNestedOperation()->RemoveFile(url_, base::Bind(
  28       &RemoveOperationDelegate::DidTryRemoveFile, AsWeakPtr()));
  29 }
  30
  31 void RemoveOperationDelegate::RunRecursively() {
  32   StartRecursiveOperation(
  33       url_,
  34       base::Bind(&RemoveOperationDelegate::RemoveNextDirectory, AsWeakPtr()));
  35 }
  36
  37 void RemoveOperationDelegate::ProcessFile(const FileSystemURL& url,
  38                                           const StatusCallback& callback) {
  39   if (to_remove_directories_.size() == 1u &&
  40       to_remove_directories_.top() == url) {
  41     // We seem to have been re-directed from ProcessDirectory.
  42     to_remove_directories_.pop();
  43   }
  44   NewNestedOperation()->RemoveFile(url, base::Bind(
  45       &RemoveOperationDelegate::DidRemoveFile, AsWeakPtr(), callback));
  46 }
  47
  48 void RemoveOperationDelegate::ProcessDirectory(const FileSystemURL& url,
  49                                                const StatusCallback& callback) {
  50   to_remove_directories_.push(url);
  51   callback.Run(base::PLATFORM_FILE_OK);
  52 }
  53
  54 void RemoveOperationDelegate::DidTryRemoveFile(
  55     base::PlatformFileError error) {
  56   if (error == base::PLATFORM_FILE_OK ||
  57       error != base::PLATFORM_FILE_ERROR_NOT_A_FILE) {
  58     callback_.Run(error);
  59     return;
  60   }
  61   NewNestedOperation()->RemoveDirectory(url_, callback_);
  62 }
  63
  64 void RemoveOperationDelegate::DidRemoveFile(const StatusCallback& callback,
  65                                             base::PlatformFileError error) {
  66   if (error == base::PLATFORM_FILE_ERROR_NOT_FOUND) {
  67     callback.Run(base::PLATFORM_FILE_OK);
  68     return;
  69   }
  70   callback.Run(error);
  71 }
  72
  73 void RemoveOperationDelegate::RemoveNextDirectory(
  74     base::PlatformFileError error) {
  75   if (error != base::PLATFORM_FILE_OK ||
  76       to_remove_directories_.empty()) {
  77     callback_.Run(error);
  78     return;
  79   }
  80   FileSystemURL url = to_remove_directories_.top();
  81   to_remove_directories_.pop();
  82   NewNestedOperation()->RemoveDirectory(url, base::Bind(
  83       &RemoveOperationDelegate::RemoveNextDirectory,
  84       AsWeakPtr()));
  85 }
  86
  87 }  // namespace fileapi